Grain-ejector for corn-planters.



No. 702,572. y A

' A. J. MARSHALL.

GRAIN EJECTUR FOR CORN` PLANTERS.

- (Appliation filed Aug. 24, 1901.)

(No Model.)

III..

. Iii AAA' f 1, mm' u @A UNITED *STATES PATENT OEEICE.

ANDREWI JACKSON-MARSHALL, OF TIMMONS, TENNESSEE.

GRAIN-EJEGTOR FOR C-OR-N-PLANTERS..

SPECIFICATION forming part of Letters Patent No. 702,572, dated `June17, 1902.

Application filed August `24, 1901. Serial No. 73,1167. (No model.)

To @ZZ whom it may concern.' Y

Be it known that I, ANDREW JACKSON MAR- SHALL, a citizen of the UnitedStates, resid` 'ing at Timmons, in the county of Maury and'v State ofTennessee, have inventeda new andiy useful Grain-Ejector forCorn-Planters, of.

which the following is a specification.

This invention relates to corn-planters, and

plied to position for use, andY that in case of.

damage or breakageI of oneorr more of its parts may readily and cheaplybe repaired.

With these and other objects in view, as will appear as the nature ofthe invention is better understood, the same consists in the novelconstructionl and combination of parts of a grain-ejector forcorn-planters, as Will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, andin whichlike numerals of reference indicate corresponding parts, thereis illustrated one form of embodiment of the invent-ion capable ofcarrying the same into practical operation, it being understood that theelements herein exhibited may be varied or changed as' to shape,proportion, and exact manner of assemblage without departing from ythescope of the in` vention; and in these` drawings- Figure 1 is a view inperspective of the device, the lid or cover thereof being removed anddisposed to one side. longitudinal section.

Fig. 2 is a view in tical plan, the bottom plateconstituting one of themembers of the seedbox-bottom being removed. Fig. 4 is a perspectivedetail view of one of the members of the housing or casing of theejector mechanism. Fig. 5 is a similar view of the cut-o.

Referring to the drawings, 1` designates a Fig. 3ds aview in ver-Ase'ed-slide, Whichisfguided for longitudinal l movement betweentwoplates 2 and bears upon-a plate 3, the plates being held assembledbycleats or cross-braces 4, secured near the same consistingof two likemembers 11 and 12, suitably held assembledwiththe bottomplate ofthese'edbox by bolts 13 and nuts 14. As the membersof the housingarecounter- 4parts of each other, this-arrangement being adopted to permitcasting of the parts from a sin gle pattern, thereby to cheapen theproduc- "tion of the structure, a description of one will serve for(both. Each member com-prises a base or flange 15, through which passesone of the bolts 13, a side Wall 16, extending at right angles to thebase l5, and an end wall17, undercut at 18 to permit passage thereunderof the seed-slide 1. The side wall is provided on the inner face of one.end with an angular I groove orrecess 19, and the end wall is formed orprovided with an outward-proj ectin g flange j 20, extending at rightangles to the side Wall .16', one end of .the iiange20 being extendedbeyond the saidwalland-the vertical edge of the wall beingbeveled, as at21. When the two members of the'housing are assembled, the recess 19 isengaged bythe beveleded'ge` 21 of the end wall of the other member, andthe side of this latter member adjacent to the end recess is engaged bythe-projecting end of the ange 20, as clearly shown in Fig 1. By co-`action between the beveled edges of the two walls andthe angularrecesses of the side walls the members'of the-'housing are'held'securely assembled against lateral or longitudinal play when the boltA13 andfnutsflll: have been secured in place.

Projecting inward from each side wall and disposed to bear upon theseed-slide 1 is a shoulder or boss 22, having a vertical elongatedopening 23 therein to be engaged-by the shaft or axle of the ejector S.As herein shown, the shoulders 22 constitute an integral part of themembers ll and l2, but it is to be understood that, if preferred, theseshoulders may be separate elements suitably associated with the saidmembers. The ejector 8, which constitutes one of the salient features ofthe invention, comprises a threearmed structure, the arms 24 of whichare pyramidal in shape, as being best adapted for the work to beperformed, although they may be otherwise shaped and still be within thescope of the invention. The arms are of somewhat less diameter than theopenings in the seed-slide and are of a length to project some distancebelow the bottom of the seedhopper, thereby in practical operation toeffect positive dislodgment of seeds or other substances that mightlodge in the seed-slide openings. The ejector is provided with pintles25, preferably integral with the body of the ejector and constitutingthe axles thereof, these pintles to work in the openings 23 of theshoulders 22, as clearly shown in Figs. 2 and 3, the contour of the saidopenings being such as to permit a limited amount of vertical play tothe ejector, thereby to prevent crushing or mutilating of a seed thathas lodged in one of the openings of the seedslide. Ordinarily, as wherea grain of corn becomes lodged in such opening, the first impact of thepoint of one of the arms with the seed will be suiiicient to dislodge itwithout injury, and should considerable resistance be presented to itsdislodgment the further pressure exerted thereon by thedownwardprojecting movement of the arm through the seed-slide willeffect its removal without injury, the resistance to dislodgment causingthe pintles ot' the ejector to ride upward in the openings 23. lf,however, the substance lodged in the seed-slide opening still resistdislodgment, it Will be forcibly crushed and ejected as soon as thepintles come in contact with the upper Walls of the said openings, as atthis point further yielding of the ejector in an upward direction ispositively checked.

As a means for controlling the feed of grain to the ejector the cut-off9 is provided, the same comprising a hollow rectangular piece of metalhaving rounded corners 26 and being of less length than the chamberformed by the members 1l and 12. The cut-off is provided in its top witha rectangular orifice 27 to present space in which the arms of theejector may work and in its sides with openings 28, adapted to fit overthe shoulders 22, the sides of the openings being rounded at 29 to allowrocking movement of the cut-off on the shoulders when a large grainbecomes lodged in the seed-slide, thus to permit the grain to be carriedto the ejector, where it is dislodged, the rounded corners 26 of thecutolf coacting with the rounded sides 29 of the openings 28 to furtherthis rocking movement.

The top of the cut-off on each side of the orifice 27 is provided withtwo wells or sockets 30 to be engaged by the lower ends of spiralsprings 3l, the upper ends of which engage downward-extending arms orprojections 32, carried by the inner sides of the walls 16, adjacent totheir upper edges. These springs 3l are to exert sufficient downthruston the cut-off to cause the latter to dislodge the seeds resting thereonwithout interfering with those in the seed-slide openings, but are toyield with requisite readiness to permit passage under the cut-off ofseed that have lodged in the openings of the seed-slide.

The top of the housing lO, which in this instance is shown as curved, isclosed by a cover 33, shaped to conform to the contour of the upperedges of the side walls and having inturned iianges 84: to interlockwith the flanges 2O of the end walls 17. To prevent separation betweenthe cover and the housing, suitable locking means is employed,consisting in this instance of a bolt 35, having two projections 36extending at right angles to its length and to be turned down againstthe side walls of the housing, a keeper 37 serving to hold the bolt inoperative relation to the cover.

The operation of the device is as follows: The seed-slide beingreciprocated in the usual or any preferred manner, carries the seed oneatatimeinto thehousingand over the opening 7 in the bottom plate 3 ofthe seed-hopper bottom. Two of the points or arms of the ejector hearupon the space between two of the openings of the seed-slide; but assoon as the opening of the seed-slide approaches the center of thehousing one of these arms is caught by the wall of the opening and is bythe movenient of the slide projected through the opening therein andthrough the opening in the bottom plate 3. If the seed in the opening Ghas not been discharged, the arm will eifect its dislodgment withoutinjury thereto; but should it be wedged in the seed-opening of theseed-slide the ejector will in a certain and positive manner force itout of the opening and discharge it to the ground. The arms of theejector are so spaced with relation to the openings 6 that each openingwill be engaged by an arm as the seed-slide is reciprocated irrespectiveof the speed at which it may be driven, so that in operation the devicewill be certain to perform the functions for which it is designed.

The only parts of the device liable to become damaged or broken in useare the ej ector and the springs 3l, and it will be apparent from theconstruction of these parts as shown that they may be readily andcheaply supplied in such an emergency.

A feature of this invention that renders it peculiarly advantageous ofemployment is that there is no possibility of the parts becominginoperative, as by being rust-locked, as both the cut-off and theejector are so disposed with relation to their bearing parts aseffectively to overcome such contingency.

IOO

IIO

Vihiler the form of device herein shown will be foundthoroughly e'icientin operation and will, if constructed as shown,I be reliable in use, itis to be understood that various changes in the manner of constructionand assemblage of the parts may be employed and still be within thescope of theinvention.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is-

1. In a corn-planter, the combination with a reciprocatory seed-slide,of a rotary vertically-yieldable ejector, and a cut-olf adapted forvertical yielding and rocking motion independently of the ejector.

2. A grain-ejector for corn-planters comprising a casing provided withoppositely-disposed shoulders having elongated orifices, an

ejector having projections working in the ori' ces, and a spring-pressedcut-off straddling the shoulders and having'rounded faces coactingtherewith.

3. A grain-ejector for corn-planters comprising a casin g provided witho'ppositely-dis-v posed shoulders having elongated openings therein,'aseed-slide movable in the casing,

' a rotary ejector having projections working in the said orifices, acut-o straddling the shoulders and having-rounded shoulders c0- actingtherewith, and springs associated with the casing and bearing upon thecut-0E.

et. A grain-ejector for corn-planters, comprising a casing provided withoppositely-dis- .posed shoulders having elongated orifices, an-

ejector having projections working intheorif1ces,la spring-pressedcut-off straddling the shoulders and havingrounded faces coactingtherewith, and a coverprovided withr'meausv an end wall undercut topermit `movementof the seed-plate, each sidewall being provided vwithanv angular groove and each endwallzbe-l ing provided with'abeveledledge' andwith aftopange projecting beyond the edge,fthe iangular grooves,when the members are as# sembled, being engaged'by thebeveled edges `0i' the end walls, and the ends of the side walls beingengaged byr the 'projected' portions of the anges, a'coverhavingiinturned walls, and locking means carried by the cover. Intestimony that'l claim'I thefforegoing as ANDREW'- JACKSON- MARSHALL.

Witnesses: v y

J. J. BUNCH, H. W. THOMAS.

anges tointerlock withA those ofthe end -6o my own I yhave heretoaffixed my signature in ythe presence of two witnesses.

